CN110388412A

CN110388412A - Bicycle chain

Info

Publication number: CN110388412A
Application number: CN201810341646.4A
Authority: CN
Inventors: 靳志忠
Original assignee: TIANXIN INDUSTRY Co Ltd
Current assignee: TIANXIN INDUSTRY Co Ltd
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2019-10-29

Abstract

A kind of chain for bicycle includes multi-disc outer chain sheet, multi-disc inner chain sheet and multiple chain rollers.Each outer chain sheet has two outer pivot ends.Each outer pivot end is provided with outer pivoted hole and the first convex top surface.The circle center line connecting of two outer pivoted holes defines the first long axis, and the first convex top surface is set to outer pivot end.These inner chain sheets have middle part.Each inner chain sheet is provided with pivoted hole and the first protrusion in two.The circle center line connecting of two interior pivoted holes defines the second long axis.First protrusion is set to middle part and has the second convex top surface.Each chain roller wears two panels inner chain sheet and two panels outer chain sheet.There is angle between first long axis and the second long axis.First convex top surface contacts and is overlapped at the second convex top surface, and to form overlapping area, area reduces as angle reduces.

Description

Bicycle chain

Technical field

The present invention relates to a kind of chain more particularly to a kind of chains for bicycle.

Background technique

Presently commercially available multi-speed bicycle (multi-speed biccycle) has power transmission dress for example shown in FIG. 1 Set (drivetrain).Referring to Fig. 1, the schematic top plan view of its actuating unit 100 for being painted existing multi-speed bicycle. Actuating unit 100 in Fig. 1 belongs to 1X transmission system, and including chain 110, rear flywheel (freewheel) 120 and nipper Disk (chainwheel) 130.Preceding fluted disc 130 is single fluted disc (chainring), and connecting crank (crank is not painted), And rear flywheel 120 has multiple sprocket wheels (sprocket) 121 stacked each other, and connects rear wheel (rearwheel is not drawn Show).

These sprocket wheels 121 and rear wheel are (co-axial) coaxially of one another, and the size of these sprocket wheels 121 is different from each other.From From the point of view of Fig. 1, these sprocket wheels 121 be sized it is descending be sequentially aligned to down from above, so the uppermost sprocket wheel 121 of Fig. 1 has Maximum gauge, and the nethermost sprocket wheel 121 of Fig. 1 has minimum diameter.Chain 110 engage (engaging) in rear flywheel 120 with Preceding fluted disc 130.When rider, which steps on pedal (pedal), carrys out rotating crank, preceding fluted disc 130 is by crank handle turns and along shaft A13 rotation.At this point, 130 drive chain 110 of preceding fluted disc of rotation, so that power is transferred to rear flywheel 120 by chain 110.Such as This, rear flywheel 120 can be rotated along shaft A12, to rotate rear wheel, to make multi-speed bicycle mobile.

Chain 110 is optionally meshed in wherein a piece of sprocket wheel 121, to reach the function of speed change.In order to enable chain 110 Be engaged in any sprocket wheel 121 of rear flywheel 120, chain 110 needs amount of deflection (flexibility), i.e., chain 110 along turn Axis A12 and the direction A13 generate the amplitude of bending (bending).Amount of deflection is bigger, and chain 110 is curved along the direction shaft A12 and A13 Bent amplitude is bigger, so that chain 110 can be engaged to any sprocket wheel 121.However, chain 110 be not engaged in rear flywheel 120 with The free section (part chain 110 shown in free section, Fig. 1 bend) of preceding fluted disc 130 should not have biggish amount of deflection. When the chain 110 in free section has compared with large deflection, chain 110 in free section readily along shaft A12 and A13 and Offset, to increase the risk that chain 110 is detached from rear flywheel 120 or preceding fluted disc 130.

Summary of the invention

The present invention provides a kind of chain of bicycle, has the amount of deflection of variable (variable).

In the chain of bicycle proposed by the invention, multi-disc outer chain sheet is respectively provided with one first middle part and two Outer pivot end, wherein each outer pivot end extends from the opposite end of the first middle part, and is respectively arranged with an outer pivoted hole, wherein The circle center line connecting of two outer pivoted holes possessed by each outer chain sheet defines one first long axis.Wherein at least one outer pivot end be provided with to Few one first convex top surface, and each outer chain sheet has more inner surface and outer surface, wherein inner surface is in adjacent The one side of chain piece.Multi-disc inner chain sheet, is respectively provided with pivot end in one second middle part and two, and each interior pivot end extends from The opposite end of two middle parts, and each inner chain sheet is provided with pivoted hole in two, is respectively formed in pivot end in two, wherein each interior chain The circle center line connecting of pivoted hole defines one second long axis in two possessed by piece.One first protrusion, set on the second middle part and has There is at least one second convex top surface.And multiple chain rollers, two inner chain sheets and two outer chain sheets are worn respectively, so that outer chain sheet and inner chain sheet It is pivoted relative to each other using chain roller as pivotal axis.Wherein, there is an angle, and the first convex top surface contact between the first long axis and the second long axis And it is overlapped in the second convex top surface, to form an overlapping area, the area of overlapping area reduces as angle reduces.

In one embodiment of this invention, two facing inner chain sheets be located at two inner chain sheets it is adjacent and face each other two Between outer chain sheet, and these first protrusions of two facing inner chain sheets extend in the opposite direction each other, wherein the first protrusion The inner surface of portion towards these respectively adjacent outer chain sheets extends.

In one embodiment of this invention, pivoted hole is all arranged along the second long axis in the first protrusion and two of each inner chain sheet Column.

In one embodiment of this invention, at least one first protrusion includes two convex blocks.These of same inner chain sheet are convex Block and these interior pivoted holes are all arranged along the second long axis, and each convex block has the second convex top surface.

In one embodiment of this invention, the first of each outer chain sheet the convex top surface is arranged in outer pivot end along the first long axis Far from the first middle part side.

In one embodiment of this invention, the second of each inner chain sheet the convex top surface and these interior pivoted holes are along the second long axis Arrangement.

In one embodiment of this invention, each outer pivot end of each outer chain sheet includes the first convex top surface in inner surface An and at least guiding angle surface.

In one embodiment of this invention, above-mentioned guiding angle surface is set to around outer pivoted hole.

In one embodiment of this invention, the quantity of guiding angle surface possessed by each outer pivot end is two, and first is convex Top surface is set between two guiding angle surfaces.

In one embodiment of this invention, above-mentioned guiding angle surface extends along the edge of outer chain sheet.

In one embodiment of this invention, the first protrusion of each inner chain sheet and the second protrusion are all adjacent towards each inner chain sheet Each outer chain sheet inner surface direction extend.

In one embodiment of this invention, each inner chain sheet is additionally provided at least one second protrusion, and the second protrusion One of pivot end in the two of each inner chain sheet.

In one embodiment of this invention, the first protrusion of each inner chain sheet, pivoted hole and the second protrusion be all in two It is arranged along the second long axis.

The present invention changes due to using overlapping area with the change of angle between the first long axis and the second long axis, so that chain With variable amount of deflection, so that chain generates different amounts of deflection in its different section.In this way, when chain is engaged in bicycle When fluted disc, the chain in free section can have lower amount of deflection, to reduce the risk that chain is detached from fluted disc.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can It is clearer and more comprehensible, spy is for embodiment below, and cooperates attached drawing, and detailed description are as follows.

Detailed description of the invention

Fig. 1 is the schematic side view of the actuating unit of existing multi-speed bicycle.

Fig. 2A is the stereoscopic schematic diagram of the chain of one embodiment of the invention.

Fig. 2 B is the perspective view of the explosion of the chain in Fig. 2A.

Fig. 2 C is the stereoscopic schematic diagram of the outer chain sheet in Fig. 2 B.

Fig. 2 D is the stereoscopic schematic diagram of the inner chain sheet in Fig. 2 B.

Schematic side view when Fig. 2 E is the chain flexes in Fig. 2A.

Fig. 2 F is the schematic top plan view of the chain in Fig. 2 E.

Fig. 3 is the schematic side view of the chain of another embodiment of the present invention.

Specific embodiment

For the present invention aforementioned and other technology contents, feature and effect refer to the embodiment of schema in following cooperation In, it can clearly present.In addition, the direction term being previously mentioned in following embodiment, such as: it is upper and lower, left and right, front or rear Deng being only the direction with reference to annexed drawings.Therefore, the direction term used is only to be used to illustrate, to help belonging to the present invention Have effects that in technical field usual knowledge understanding feature of present invention and, be not intended to limit the invention.

Fig. 1 is the schematic side view of the actuating unit of existing multi-speed bicycle, and Fig. 2A is one embodiment of the invention Chain stereoscopic schematic diagram.Please refer to Fig. 2A and Fig. 2 B, chain 200 include multi-disc outer chain sheet 210, multi-disc inner chain sheet 220 with And multiple chain rollers 230.Facing two panels inner chain sheet 220 is between facing two panels outer chain sheet 210, and these chain rollers 230 Two inner chain sheets 220 and two outer chain sheets 210 are worn respectively, so that outer chain sheet 210 and inner chain sheet 220 can be pivot with chain roller 230 The facing pivot of shaft.In this way, chain 200 is able to wind and be engaged in the rear flywheel of bicycle and preceding fluted disc wherein at least one Person, wherein aforementioned bike can be multi-speed bicycle or single speed bicycle (single-speed bicycle).

These outer chain sheets 210 are respectively provided with two outer pivoted hole 211h, two outer pivot ends 211 and the first middle part 212, and each outer pivot end 211 extends from the opposite end of the first middle part 212, wherein each outer pivot end 211 is provided with One outer pivoted hole 211h, i.e., in the same outer chain sheet 210, two outer pivoted hole 211h are respectively formed in two outer pivot ends 211.These inner chain sheets 220 are respectively provided with two interior pivoted hole 221h, two interior pivot ends 221 and the second middle part 222, and Each interior pivot end 221 extends from the opposite end of the second middle part 222, wherein each interior pivot end 221 is provided in one Pivoted hole 221h, i.e., in the same inner chain sheet 220, two interior pivoted hole 221h are respectively formed in two interior pivot ends 221.

These chain rollers 230 are inserted in these outer pivoted hole 211h and these interior pivoted hole 221h respectively.With Fig. 2A and Fig. 2 B For, a chain roller 230 can be inserted in two outer pivoted hole 211h and two interior pivoted hole 221h, i.e. each chain roller 230 is worn Two inner chain sheets 220 and two outer chain sheets 210.Therefore, these chain rollers 230, the outer pivot end 211 of one of outer chain sheet 210 are utilized It can be articulated in an interior pivot end 221 of inner chain sheet 220, so that these outer chain sheets 210 and these inner chain sheets 220 are concatenated with one another.

In the embodiment shown in Fig. 2A and Fig. 2 B, chain 200 further includes multiple rollers (roller) 290, wherein each Roller 290 is configured between facing two inner chain sheets 220, and a chain roller 230 can be arranged in a roller 290.Work as chain 200 when being engaged in fluted disc (such as rear flywheel or preceding fluted disc of bicycle), and multiple rollers 290 can be arranged respectively at the multiple of fluted disc In tooth socket (space), and contact fluted disc.In addition, in other embodiments, even if chain 200 does not include any roller 290, chain Item 200 can also be engaged with the fluted disc of bicycle (i.e. rear flywheel with preceding fluted disc).So roller 290 shown in Fig. 2A and Fig. 2 B is only For having to include roller 290 for example, being not intended to limit chain 200.

Fig. 2 C is the stereoscopic schematic diagram of the outer chain sheet in Fig. 2 B.Fig. 2 B and Fig. 2 C are please referred to, outer chain sheet 210 has outside table Face S21a and inner surface S21b.Outer surface S21a is away from one another right with inner surface S21b, and outer pivoted hole 211h is from outer Side surface S21a extends to inner surface S21b, i.e., outer pivoted hole 211h connection outer surface S21a and inner surface S21b, and For perforation (through hole), wherein inner surface S21b is towards inner chain sheet 220, i.e. inner surface S2 is in adjacent The side of chain piece 220.

In addition, each outer pivot end 211 of each outer chain sheet 210 includes at least one side guiding angle surface in inner surface S21b The 211a and convex top surface 211b of at least one side first.By taking Fig. 2 C as an example, the inner surface S21b of each outer pivot end 211 includes extremely Few convex top surface 211b of a guiding angle surface 211a and one first.In more detail, guiding angle surface 211a possessed by each outer pivot end 211 Quantity be two sides, the quantity of possessed first convex top surface 211b is one side, wherein the first convex top surface 211b is set to two and leads Between edged surface 211a, and two sides guiding angle surface 211a extends from the two sides of the first convex top surface 211b respectively.

At the adjacent first convex top surface 211b of guiding angle surface 211a, the thickness of outer chain sheet 210 is from the first edge convex top surface 211b Guiding angle surface 211a and successively decrease, therefore on outer chain sheet 210 first convex top surface 211b thickness can be greater than be located at guiding angle surface 211a Thickness.Guiding angle surface 211a be relative to the first convex inclined inclined-plane top surface 211b, and outer pivot end 211 in guiding angle surface 211a and Angle theta 1 between first convex top surface 211b is greater than 90 degree, and wherein guiding angle surface 211a can be plane or curved surface.In addition, these are led Edged surface 211a is set to around outer pivoted hole 211h, and is extended along the edge E21 of outer chain sheet 210.That is, outer Chain piece 210 has partially thin thickness at edge E21.

With the center of circle the first major axis A of C1 wire definition 21 of two of each outer chain sheet 210 outer pivoted hole 211h, and each outer The convex top surface 211b of the first of chain piece 210 is separate first middle part 212 that outer pivot end 211 is arranged in along the first major axis A 21 Side, wherein the first middle part 212 is located between these first convex top surface 211b, and two outer pivoted hole 211h also in Between these first convex top surface 211b.

In addition, each outer pivot end 211 is equipped with the first convex top surface 211b of one side and two sides in embodiment shown in fig. 2 C Guiding angle surface 211a, but in other embodiments, optionally only any of them outer pivot end 211 is equipped with each outer chain sheet The first convex top surface 211b and the outer pivot end 211 of two sides guiding angle surface 211a or each can be equipped with the of two sides or two sides or more on one side One convex top surface 211b, but it is not provided with any guiding angle surface 211a.For example, the inner surface S21b of outer pivot end 211 can change For plane, and each outer pivot end 211 can be changed to multiple pillars for protruding from inner surface S21b, wherein each pillar Top surface can be used as the first convex top surface 211b.In this way, outer pivot end 211 there can be at least convex top surface 211b in two sides first, and do not have There is guiding angle surface 211a.Therefore, Fig. 2A only supplies to be had for example, being not intended to limit outer chain sheet 210 to outer chain sheet 210 shown in fig. 2 C The quantity of the convex top surface 211b of first had does not limit outer chain sheet 210 yet and has to have guiding angle surface 211a.

Fig. 2 D is the stereoscopic schematic diagram of the inner chain sheet in Fig. 2 B.Fig. 2 B and Fig. 2 D are please referred to, each inner chain sheet 220 is provided with First protrusion 223, wherein the first protrusion 223 is set to the second middle part 222.The first of facing two panels inner chain sheet 220 Protrusion 223 extends in the opposite direction each other.That is, in facing two panels inner chain sheet 220, these first protrusions 223 be the inner surface S21b extension towards these respectively adjacent outer chain sheets 210, and with respect to the first protrusion of inner chain sheet 220 223 will not be arranged with facing each other.In addition, these first protrusions 223 will not be contacted with roller 290, as shown in Figure 2 B.Respectively The center of circle the second major axis A of C2 wire definition 22 of two interior pivoted hole 221h possessed by piece inner chain sheet 220, and the first protrusion 223 extend along the second major axis A 22, and have the convex top surface 223a of at least one side second.The convex top surface of the second of each inner chain sheet 220 223a and these interior pivoted hole 221h are arranged along the second major axis A 22, wherein the second convex top surface 223a is located at two interior pivoted holes Between 221h.

In the embodiment shown in Fig. 2 D, each inner chain sheet 220 is also provided at least one second protrusion 224. In the case where second protrusion 224 are only arranged, one of them of pivot end 221 in two may be disposed at.In the present embodiment 224 quantity of the second protrusion be two, and the two second protrusions 224 are respectively arranged on pivot in the two of each inner chain sheet 220 End 221 is connect, wherein the first protrusion 223 is located between the two second protrusions 224.First protrusion of each inner chain sheet 220 Portion 223 extends in the same direction with these second protrusions 224, that is, towards the adjacent outer chain sheet 210 of each inner chain sheet 220 Inner surface S21b extends, so the first protrusion 223 and these all positions of the second protrusion 224 and protruding from a piece of inner chain sheet 220 the same side (side).In addition, in the first protrusion 223, two of each inner chain sheet 220 pivoted hole 221h and these Two protrusions 224 all arrange A22 along the second long axis, as shown in Figure 2 D.

Schematic side view when Fig. 2 E is the chain flexes in Fig. 2A.Please refer to Fig. 2 E, outer chain sheet 210 and inner chain sheet 220 It with chain roller 230 can be pivotal axis and be pivoted relative to each other, so that the first major axis A 21 of connected outer chain sheet 210 and inner chain sheet 220 and the Angle theta 2 is formed between two major axis As 22.When the chain 200 of part section is straightened, the first major axis A 21 being straightened in section with Angle theta 2 between second major axis A 22 is maximum value, is 180 degree.When outer chain sheet 210 and inner chain sheet 220 are pivoted relative to each other, so that When the partial sector bending of chain 200, the angle theta 2 in this curved section can be less than 180 degree, as shown in Figure 2 E.

Fig. 2 F is the schematic top plan view of the chain in Fig. 2 E.Fig. 2 E and Fig. 2 F are please referred to, in the outer chain sheet 210 being connected with each other In inner chain sheet 220, the convex top surface 211b of the first of outer pivot end 211 can be set to the second middle part 222 the second convex top surface It contacts and overlaps at 223a, and form overlapping area L1, hatched example areas as shown in Figure 2 E.The area of overlapping area L1 can be with The diminution of angle theta 2 and reduce.When the chain 200 of part section is straightened, angle theta 2 is maximum value 180 degree, at this point, first is convex The overlapping area L1 between the first of portion 223 the convex convex top surface 223a of top surface 211b and second has maximum area (such as Fig. 2 E out In be located at leftmost overlapping area L1), also make between the first convex convex top surface 223a of top surface 211b and second accessible each other Area is also the largest, and will form a clearance G 1 between opposite outer chain sheet 210 and inner chain sheet 220.In this way, inner chain sheet 220 The second convex top surface 223a be easy to overlap in the first of outer chain sheet 210 the convex top surface 211b, so as to be straightened, (angle theta 2 is equal to 180 degree) 200 section of chain there is lower amount of deflection and be not easy curved along the direction of chain roller 230 and the two long axis of roller 290 It is bent.

Fig. 2 F is please referred to again, when outer chain sheet 210 and inner chain sheet 220 are pivoted relative to each other, so that the partial sector of chain 200 is bent When, angle theta 2 can change with the pivot amplitude between outer chain sheet 210 and inner chain sheet 220, and wherein 200 bending amplitude of chain is got over Greatly, the angle of angle theta 2 is smaller, so that the area of overlapping area L1 reduces with the diminution of angle theta 2.Therefore, the first convex top Area L1 accessible each other can also reduce with the diminution of angle theta 2 between the convex top surface 223a of face 211b and second.Work as chain When 200 bending amplitudes are excessive, the first convex top surface 211b can not be overlapped in the second convex top surface 223a, so that overlapping area L1 disappears It loses, the first convex top surface 211b is not contacted each other with the second convex top surface 223a.Due to the first convex convex top surface top surface 211b and second The area being in contact with each other between 223a reduces with the diminution of angle theta 2, in addition disappear, therefore facing outer chain sheet 210 with Biggish clearance G 1 can be formed between inner chain sheet 220, so that being bent 200 section of chain of (angle theta 2 is less than 180 degree) has Higher amount of deflection and be bent readily along the direction of both chain roller 230 and rollers 290 long axis.

It follows that 200 section of chain being straightened has lower amount of deflection when chain 200 is straightened.When chain 200 When bending, by curved 200 section of chain amount of deflection with higher.Therefore, the fluted disc (example of bicycle is engaged in chain 200 Rear flywheel 120 and preceding fluted disc 130 as shown in Figure 1) after, chain 200 can generate different amounts of deflection in different sections.In detail and Speech, chain 200 be engaged in the section of fluted disc because of bending amount of deflection with higher, and chain 200 is not engaged in the freedom of fluted disc Section is more straight and has lower amount of deflection.In this way, the chain 200 in free section is not easy the shaft along fluted disc And the refining item 200 for deviating, and being engaged on fluted disc can then be corresponded to because of amount of deflection with higher front and back fluted disc between it is lateral It is displaced and is bent, to reduce the risk that chain 200 is detached from front and back fluted disc.

The effect of second protrusion 224 is essentially the same as the effect of the first protrusion 223, i.e. the second protrusion 224 It can promote 200 section of the chain amount of deflection with higher for being bent (angle theta 2 is less than 180 degree), the and (angle theta 2 etc. that is straightened In 180 degree) 200 section of chain there is lower amount of deflection, wherein the second protrusion 224 is allowed to reach the mechanism of above-mentioned effect and the One protrusion 223 is substantially identical, so being not repeated to describe.Further, it is necessary to which explanation, real shown in Fig. 2 D to Fig. 2 F It applies in example, inner chain sheet 220 is provided with the second protrusion 224, but in other embodiments, and at least a piece of inner chain sheet 220 can not be set The second protrusion 224 is set, so the second protrusion 224 shown in Fig. 2 D to Fig. 2 F only supplies for example, not limiting each interior chain Piece 220 has to the second protrusion 224 of setting.

In addition, the first protrusion 223 and the second protrusion 224 shown in Fig. 2 D are only referred to for citing, it is not for limiting Make the shape of both the first protrusion 223 and the second protrusion 224.In other words, in other embodiments, the first protrusion 223 also can have other different shapes from 224 the two of the second protrusion.For example, the shape of the second protrusion 224 can be Semi-cylindrical or corner post shape, and the shape of the first protrusion 223 can be rectangular cylindrical or triangle column.

Fig. 3 is the schematic side view of the chain of the bicycle of another embodiment of the present invention.Referring to Fig. 3, the present embodiment Chain 300 is similar to the chain 200 of previous embodiment.For example, chain 200 and 300 also includes the same or similar element, it is such as outer Chain piece 210 and chain roller 230.Moreover, both chains 200 and 300 effect is identical.Therefore, the identical spy of the two of chain 200 and 300 Sign is not repeated to describe in principle with effect, and the difference between following main narration chain 200 and 300.

Inner chain sheet 320 included by chain 300 is different from inner chain sheet 220.Specifically, inner chain sheet 320 has in second Between portion 322 and the first protrusion 323 set on the second middle part 322, wherein the first protrusion 323 include two convex block B1. These convex blocks B1 with a piece of inner chain sheet 320 (is not painted) with pivoted hole in these due to being covered by outer chain sheet 210 and chain roller 230 It is all arranged along the second major axis A 32, wherein each convex block B1 has the second convex top surface (not indicating), and the shape of the second convex top surface Convex block B1 as shown in Figure 3.

When outer chain sheet 210 and inner chain sheet 320 are pivoted relative to each other, folder will form between the first major axis A 21 and the second major axis A 32 Angle θ 3.Folder when the chain 300 of part section is straightened, between the first major axis A 21 and the second major axis A 32 being straightened in section Angle θ 3 is maximum value 180 degree.When the bending of the partial sector of chain 200, angle theta 3 can becoming larger with 200 bending amplitude of chain And increase.In the outer chain sheet 210 and inner chain sheet 320 being connected with each other, the convex top surface (not indicating) of the first of outer pivot end 211 can be connect The convex block B1 set on the second middle part 322 is touched and is overlapped in, to form overlapping area L2, hatched example areas as shown in Figure 3, The area of middle overlapping area L2 can also reduce with the diminution of angle theta 3.It follows that it is identical as previous embodiment, utilize weight The repeatedly variation between region L2 and angle theta 3, chain 300 also can generate different amounts of deflection in its different section.In this way, working as chain 300 when being engaged in the fluted disc of bicycle, and the chain 300 in free section is not easy the shaft along fluted disc and deviates, from And reduce the risk that chain 300 is detached from fluted disc.

The above is only the embodiment of the present invention, is not intended to limit the present invention in any form, although originally Invention is disclosed above with embodiment, and however, it is not intended to limit the invention, any person skilled in the art, is not taking off From within the scope of technical solution of the present invention, when the method and technique content using the disclosure above makes a little change or is modified to The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.

Claims

1. a kind of chain of bicycle characterized by comprising

Multi-disc outer chain sheet is respectively provided with one first middle part and two outer pivot ends, wherein respectively the outer pivot end extend from this The opposite end of one middle part, and be respectively arranged with:

One outer pivoted hole, wherein respectively the circle center line connecting of the two outer pivoted holes possessed by the outer chain sheet defines one first long axis, and At least one outer pivot end is provided at least one first convex top surface；

Multi-disc inner chain sheet is respectively provided with pivot end in one second middle part and two, and respectively the interior pivot end extends from this in second Between portion opposite end, and respectively the inner chain sheet is provided with

Pivoted hole in two is respectively formed in the two interior pivot ends, wherein the respectively circle of the two interior pivoted holes possessed by the inner chain sheet One second long axis of heart wire definition；

One first protrusion is set to second middle part and has at least one second convex top surface；

Wherein, respectively the outer chain sheet has more an inner surface and an outer surface, which is in face of the adjacent interior chain The one side of piece；And

Multiple chain rollers wear two inner chain sheets and two outer chain sheets respectively, so that the outer chain sheet is with the chain roller with the inner chain sheet Pivotal axis is pivoted relative to each other；

Wherein, there is an angle between first long axis and second long axis, and the first convex top surface contact and be overlapped in this Two convex top surfaces, to form an overlapping area, the area of the overlapping area reduces as the angle reduces.

2. chain as described in claim 1, which is characterized in that the inner chain sheet of facing two is positioned at the inner chain sheet is adjacent with two And between two faced each other the outer chain sheet, and those first protrusions of the two facing inner chain sheets towards it is respectively adjacent should The inner surface of a little outer chain sheets extends.

3. chain as claimed in claim 2, which is characterized in that respectively first protrusion of the inner chain sheet and the pivoted hole in two All arranged along second long axis.

4. chain as described in claim 1, which is characterized in that at least one first protrusion includes two convex blocks, same interior chain Those convex blocks of piece and those interior pivoted holes are all arranged along second long axis, and respectively the convex block has the second convex top surface.

5. chain as described in claim 1, which is characterized in that respectively the first convex top surface of the outer chain sheet is along first long axis It is arranged in the side far from first middle part of the outer pivot end.

6. chain as described in claim 1, which is characterized in that the respectively second convex top surface of the inner chain sheet and those interior pivoted holes It is arranged along second long axis.

7. chain as described in claim 1, which is characterized in that respectively respectively outer pivot end of the outer chain sheet is in the inner surface packet Include the first convex top surface and an at least guiding angle surface.

8. chain as claimed in claim 7, which is characterized in that the guiding angle surface is set to around the outer pivoted hole.

9. chain as claimed in claim 8, which is characterized in that respectively the quantity of the guiding angle surface possessed by the outer pivot end is two It is a, and the first convex top surface is set between two guiding angle surface.

10. chain as claimed in claim 8, which is characterized in that the guiding angle surface extends along the edge of the outer chain sheet.

11. chain as described in claim 1, which is characterized in that respectively the inner chain sheet is additionally provided at least one second protrusion, And second protrusion is set to one of the pivot end in two of each inner chain sheet.

12. chain as claimed in claim 11, which is characterized in that respectively first protrusion of the inner chain sheet, the two interior pivot joint Hole and second protrusion are all arranged along second long axis.

13. chain as claimed in claim 11, which is characterized in that respectively first protrusion of the inner chain sheet and second protrusion Portion all extends towards the inner surface direction of the adjacent respectively outer chain sheet of the respectively inner chain sheet.